A research team wants to know if eating cheese before falling asleep elicits strange dreams. Researchers find 74 volunteers and gives them identification numbers 00 through 73. Then the researchers use a random number generator to select 37 unique identification numbers. Participants with those identification numbers are put in the treatment group (eating cheese before falling asleep), and all other volunteers are put in the control group. This is an example of what characteristic in study design? O random assignment O random selection O blocking O voluntary response Question 15 1 pts A twitter poll asks, "How important is it for world governments to collaborate on measures that address climate change?" What kind of sampling method is this? O voluntary response O simple random sample O cluster O stratified